Device for spraying a gas-containing fluid



Oct. 12, 1954 o. FEUCHT TAL 2,691,548

- DEVICE FoR SPRAYING A GAS-CONTAINING FLUID Filed Oct. .8. 1952 IN vf/v roi? f rro FEA/cm- W das?" SoHL EMA/WV Patented Oct. l2, 1954 DEVICE FOR SPRAYING A GAS-CONTAINING FLUID Otto Feucht, Backnang, Wurttemberg, and Just Shlemann, Schonaich, Wurttemberg, Germany Application October 8, 1952, Serial No. 313,740

Claims priority, application Germany October 9, 1951 9 Claims.

This invention relates to a spray apparatus and is particularly concerned with a device for spraying a gas-containing fluid, by way of example for treating and scavenging body cavities, partlcularly the mouth with the teeth, wounds, mucous membranes and sickened. skins.

For preventing and combating different illnesses of the body cavities, particularly the mouth cavities including the teeth and cleansing the same for treating wounds and certain skin diseases physicians suggest to spray uids mixed or saturated with gases, particularly carbonic acid, and in which different disinfectants and therapeutic substances are dissolved or admixed, into the body cavity, on the wound or the skin with a ne jet pressure. The gases admixed to the fluid and the mechanical irritation will bring about a more intense hyperaemia of the concerned tissues, whereby the eiect of the disinfectants and the therapeutic substances will substantially be increased.

In the design of devices for spraying medically efficient gas-containing iiuids several conditions must be considered. All parts of the device which come into contact with the iluid must be developed so that they cannot be attacked by the fluid. As, for instance in the treatment of gums for swelling down the gums, caustic chemicals are often used which attack several metals, one must lay particular stress on no metals dissolving in the fluid, particularly in the form of salts, and which may be detrimental to health, being used as materials for parts which come into contact with the fluid.

The device must be so constructed as to guarantee a steady jet pressure even during an eX- tended treatment.

Several devices for spraying uid were produced destined for domestic use. It has turned out, however, that the devices have not yet come into general use. The reason of this failure is in the fact that these devices are either too difiicult to handle or that their purchase or their management are too costly or that other disadvantages have prevented people from purchasing.

It is accordingly an object of this invention to provide an improved spray for the care of the mouth and the teeth.

Another object of the invention is to provide a spray of novel design which is simple to operate and to clean, and which will cheaply be produced andpurchased.

It is another object of the invention to provide a spray whose parts are substantially made of transparent materials, so that the taking away of impurities being the culture media for bacteria is made easier, and uninitiated persons, such as children can be made to keep the device hygienically clean.

It is another object of the invention to provide a spray with a tablet holder of novel design, in Which tablets are put which dissolve in the water the spray is lled up with, and produce carbonio acid especially.

Another object of the invention is to provide a spray whose parts contacting with the fluid are made of a material, preferably of such plastics as not to be attacked by any of the concerned chemicals of the fluid dissolved in the same.

Another object of the invention is to provide a spray whose parts made of thermoplastic material are transparent, break-proof and chemically inert.

It is another object of the invention to provide a spray whose parts are so designed as to be produced cheaply in mass production by casting and die-casting and to be assembled easily.

Another object of the invention is to provide a spray whose mouth piece is surrounded by a funnel so that particles of the sprayed fluid mixture rebounding from the spot of treatment are intercepted, and the mucous membranes pockets of the body cavities will be kept off the orice.

Another object of the invention is to provide a spray with a quick-action seal so that during the interval between the filling of the sprayer bottle comprising the entering of the gas-producing chemicals and the gas-tight sealing substantially no gas pressure arises in the sprayer bottle, which would render the sealing more diflicult and bring about a reducing of pressure.

Another object of the invention is to provide a spray whose quick-action lock is so designed that it can be operated with one hand only in order to allow an easy handling by invalidated persons, too.

Another object of the invention is to provide a spray whose valve and feed lines to the valve and to the mouth piece are so designed that hardly any energy of pressure is lost because of the friction of the uid on the walls, that is to say that when operating the spray the compressed iiuid mixture ows slowly and steadily to the mouth piece, and only there the pressure of the fluid is converted into kinetic jet energy.

Ano-ther object of the invention is to provide a tablet holder at the end above the container bottom of the spray of the tube dipping into the f fluid, being so arranged and designed that in it the ingredients acting therapeutical and disinfectant and the gas-developing substances can easily be inserted in a certain mixture with tablets containing binding agents or none, tasteimproving substances, and that the tablet holder during the dipping into the fluid intercepts till the final sealing of the device the gasses developed by the tablets with the lilling iluid of the spray, preferably water, and .that lit deposits not dissolved solids of the fluid flow ilowing to the valve.

It is another object of the invention to .provide a spray with a valve to be operatedby hand for sealing and opening the exhaust port of the fluid of such a design as to open the exhaust port if the gas pressure in the container exceeds an admissible top. limit.

The invention is described more fully hereinafter with reference to a preferred embodiment of the same illustrated in the drawings. In the drawing .is shown:

Fig. f1 a schematic viewof a spray constituting apreferred `embodiment of the invention,

.'Fig. 2 a plan of the .spray according to Fig. il,

Fig. 3 a longitudinal section across `the :spray .alongthe lineI-I -in Fig. 2,

Fig. 4 a. fragmentary sectional View Vof the .spray taken along vthe line II-II in Fig. 2,

Fig. .5 a vie-wof the tabletholder seen-from the bottom,

Eig.. 6.a. fragmentary sectional view through the tablet'holder.takenalong the line V-V in Fig. .5.

The neck of a bottle-likecontainer I widening .toward the .bottom is provided with a iiange 2 encircling anopening of the container being Vso wide that thecontainer .I can easily becleansed and .filled kwitha fluid. .The container I is made of transparent .and unbreakable plastics which will hardly be attacked or corroded by substances used in medicine .for `the therapeutic and ldisinfectant ,purposes preferably of plastics, such as .polymethacrylacidester or .polystyrol. The size of the container I is so designed that on the .onehand itcan receive .the fluid quantities vusual .in medicine for washing body cavities, .particularly `the mouth, .about 50-1000 cm, but-on .the other .hand will not .be -unwield1y- The opening .of -Athe .container I surrounded .by flange .2 .is sealed by .top part 4 to which two stirrups cfa .stirrup lock are linked. .In the locking :position lthe stirrups engage .with noses 6 .into theslight- 'ly chamered bottom. side of flange v2 and press the top .part 4 to the top side of flange 52. Inorder to `guarantee agastight sealing a sealing vring 1 improvided kwhich is kept .in its position by a .ring ,B .encircling it at `the top part 4. The` sealing .ring `1 has two'lips 9 directed inward, which, if there is in container I an excess pressure in relation Sto the atmospheric pressure, on the one .hand .contact the flange 2, on the other hand the top ,part 4, and thus seal the container I gastight.

The top part 4 consists of two parts, the top member II and the bottom memberIZ. The sur- 'face of lthe bottom member I2 is provided with two notches vI4 preferably of a rectangular cross sectionadapted for receiving thehooked ends i3 vof the locking stirrups .5. In the side walls of the top member I I .of the top Vpart 4 recesses I5 are .provided corresponding notches I4 of the bottom member. The .height and width of the recesses I5 are so sized that the hooked ends I3 have such a clearance that, onthe onehand, each of the locking stirrups 5 cannot fall olf .the corresponding notch 1'4 and `would vthus be loosened. .from the top .part 4, on .the other hand,

however, the locking stirrups 5 are allowed a suilicient clearance for disconnecting the noses 6 from engaging with flange 2.

For connecting the top `member .II with the bottom member I2 there are two vertical holes IB in the top member II alining with two holes I6 provided in the bottom member I2. Near lthe bottom end of each hole within the bottom member yI2 a nut I8 is cast in so as to receive a bolt I6 passing through the top member for tightening both parts.

The top member II and the bottom member I2 represent bodies substantially turned cylindrically. Through the bottom part I I a concentric borepasses, which is twice abruptly enlarged from its top end to its bottom end so as to form a top shoulder 2I and a bottom shoulder 22 within the bore. In the bottom part there is likewise provided a concentric bore which extends fro-m the bottom end to the top end and istwiceabruptlyenlargedso as to form a shoulder -23 .anda shoulder .2 4'.

In .the shoulder 22 there .is a guide disk 26 inserted made of metal or preferably of hard plastics for a valve pin 21.

At the valve pin 21 a disk 28 is lixed. A spring 29 supports itself, on the one hand, on Athe disk .28, on .the other hand against the shoulder 2| and presses the valve pin downward till the valve cone .3I mounted onthe valve pin 21 is seated on the shoulder 23, and thus closes the bore of the bottom member I2. In an opening passing in the top .member Il from. the outside Wall to the central boire with a `substantially rectangular .cross sectionan arm 32 of a hand lever33 isarranged. The bottom ofthe arm 32 is curved and .in contact with the top .surface of the bottom member I2 on which it can devolve The end of the ,arm .32 is designed as eye 34 encircling the valve pin .2.1

Ii the hand lever 33 is pressed against the container l, the arm 32 devolves on the top surface ofthe bottom member I2 pressing the disk .28 to the top with an eye 34 against the action of the spring 29. The valve pin 21 will glide axially yto the top in the bore of the top member II and ,inthe guide disk, whereby the valve cone 3I will .be retracted from the shoulder 23.

.In the shoulder 24 of the bottom member I2 ya sealing ring 38 is inserted, which, if the top .member -Il is fixed on the bottom member I2 is .held by the guide disk26, so that the collar-like or Yin the cross section lip-shaped inside edge of the packing ring 36 can under the pressure of gases seat on the valve pin 21 which thus closes the bore of the bottom member gastight against the bore of the top member.

In the bore of the bottom member I.I a tube 4l is fixed extending into the container I in alignment .with the bore. At the end of the tube 4I extendinginto the container I a tablet holder 42 is arranged.

The tablet holder 42 consists of two substantially cylindrical hollow bodies 43 and 44. The hollow body 43 is Within the hollow body 44 and with the common axis vertically disposed so as to form aslit-like ring space 4B adapted to vprevent undissolved parts of the tablets from entering the ring space 46. The hollow body 43 is secured in proper distance at the hollow body 44 by means of lillet .41. The two cylindrical hollow bodies 43 and 44 are provided in the upper ends with front walls 48, 49 .being substantially spaced as thecylindrical hollow bodies 43 and 44. The .space between the front walls 48, 49

with the space of the containerI the front wall 49.

- the locking with one pull. taining therapeutic and disinfectant ingredients and gas-developing ingredients, are introduced .into the tablet holder where they are held back I by the cutters 52. Now the container I is filled and the ring space 46 between both cylindrical hollow bodies are in communication with one another and with the tube -4I. The front walls -48 and 49 lare provided with openings 5I not directly communicating with the ring space 46. The openings 5I allow the space of the inside cylindrical hollow body 43 to communicate above The inside wall of the cylindrical hollow body 43 is provided with elastic bar-shaped cutters 52 adapted to fix' the tablets 54 set into the cylindrical hollow body 43'.

The bottom member I2 of the top part .fi has a transverse hole 55 running up to the concentric centralbore in the bottom member. In the transverse hole a tube 56 is xed, whose end lying outside the top part 4 is provided witha funnel-shaped mouth piece 5l. The funnelshaped mouth piece 51 encircles the nozzleshaped opening 58 of the tube 56.

The effect and the operation of the spray is the following:

The operator appropriately leads one hand along the container I and presses the stirrups 5 with their sticking out handles I0 off the container I. By swinging the stirrups 5 the noses 6 are disconnected from their locking position with the bottom surface of the ange 2. As soon as the hand is furthermore brought to the top, the hooked ends I3 put on the inside walls of the passage I5 within the top member I I, whereby a further Aswinging motion of the stirrups .5 is prevented. Thus the top part rfi, by putting the hand on the handles ID, can be lifted ofi the container I that is to say orf the opening or" Now tablets 54 con with water and the top part 4 put on the container I, the tablet holder 42 dipping into the water contained in the container i. Lis soon as the tablets 54 come in contact with the water,

the gas-developing ingredients of the tablets dissolve in the water and immediately gas will be 'developed. Lest in the container I ya gas pressure should arise rendering the locking of the container diflicult, the tablet holder 42 is so designed that the gases nrst developed press the water out of the tablet holder. When the top part 4 is seated on the container, the locking stirrups 5 are compressed, the noses Il engaging in the bottom side of the flange 2.

The gases developed within the inside hollow body 43 escape only slowly by way of the opening 5I into the space of the container I and saturate the water in the container I which in the meantime was enriched with the dissolvingT therapeutic and disinfectant substances. If now the hand lever 33 is pressed against the container I the opening at the shoulder 2S is freed by the valve cone 3l, whereby the fluid exposed to the pressure produced by the gases generated within the container gets to the mouth piece by way of the split-like ring space Lid, the tube 4I, the concentric bore in the bottom member I2 Aand by way of the transverse hole leading to the outside and owing out into the concentric bore, the tube 56, and is sprayed out there in a ne jet. As soon as the hand lever 33 is released, the spring 29 presses the valve cone BI against the opening nowing out at the shoulder 23 and closes this opening till the inner pressure becomes so high that it can by itself lift off the valve cone 3| from the opening against the action of the spring 29. The spring is given such a tension f that the valve cone tI will be released just when the pressure within the container should accede rdifferent combinations of the features may be achieved within the spirit and scope of the invention as described hereinabove and illustrated in thedrawings and as dened in the appended claims.

What is claimed is:

l. A device for spraying a gas-containing uid comprising a bottle-like container for receiving a uid adapted to develop gases together with gasdeveloping substances, a flange on the said container this flange being arranged around an Opening of the container, a top part adapted to close the said opening by contact with the nange, locking means adapted to press down the top part on the said nange, packing means inserted between the top part and the flange, a tube xed at the top part and arranged in alignment with a lbore of the top part, the one end ofthis tube being arranged above the bottom of the container, a second tube fastened at the top part and arranged lin alignment with a second bore of the top part j from its valve seat by excess pressure in the container, spring means adapted to close the valve againstV the action of the gas pressure existing in the container, and means operated by hand and `adapted to open the valve against the action of the said spring means.

2. A' device for spraying a gas-containing nuid comprising a bottle-like container for receiving a fluid adapted to develop gases together with gasdeveloping substances, a flange on the said container this flange being arranged around an opening of the container, a top partadapted to close the said opening, locking means adapted to press down the top part on the said ilange, rigid means being provided adapted to iix the top part at a distance from the flange, elastic sealing means inserted between the top part and the flange said elastic means consisting of a ring provided at its inner surface withlips adapted to be expanded by A the pressure of the gases developed in the container, the upper of these lips being adapted to be put against the ange, a tube iired at the toppart and arranged in alignment with a bore of the top part, the one end of this tube being arranged above the bottom, a second tube i'iXed at the top part and arranged in alignment with a second bore of the top part and in a direction transverse .to the first-named tube, and having lits owing out outside the top part, a valve adapted to connect both tubes and arranged in the top part, spring means adapted to close the valve against the action of the gas pressure existing in the container, and means operated by hand and adapted to lopen the valve against the action of the said spring means.

3. A device for spraying a gas-containing uid comprising a bottle-like container for receiving a fluid adapted to develop gases together with gasdeveloping substances, a flange on thesaid con- -tainer this 'ange being arrangedaroundfanopening of the container, a top part-adapted to jclose the -said opening, llocking stirrupsfhaving hinge joints with the top part, a noseat each'ofthe said locking stirrups arranged so as to'lock the respective locking stirrup under the flange and 'topress the top part on the said flange, elastic sealing means inserted between the top -part `and the flange, a tube fixed at thetop part-and-arranged in alignment with a bore of the'toppart, the'one -end of this tube being arranged above the bot- .tomof the container', a second tube xodatthc top part `and arranged in alignment with a -second bore of the top part and ina direction transverse to the first-named tube-and having itsrflowing out outside the top part, a Valve adapted to connect both tubes and arranged in vthe top part, `spring means adapted to close the valve against Ytheaction of the gas-pressure existing in the container, and means operatedby hand and-adapted to open the valve against the action-of the said spring means.

4. A device for spraying agas-containing fluid, comprising a bottle-like container for receiving `the fluid, a flange attliis container, this flange `being arranged around an opening of the container, a top part adapted to close up the said opening, locking means adapted to press down the top part on the said flange, elastic sealing means inserted between the top part and the ange, a ltube fixed at the top part and arranged in-alignment with a bore of the top part, the one end of this tube being arranged above the bottom of the container, means arranged on the said tube and adapted to hold tablets containing substances adapted to develop gases together with the said uid, a second tube xed at the top part and arranged in alignment with a second bore of the top part and in a direction transverse to the firstnamed tube and having its flowing out outside the toppart, a valve adapted to connect both tubes and arranged in the top part, spring means adapted to close the valve against the action of the gas pressure existing in the container, and ,means operated by hand and adapted to open the valve against the actionof the said spring means.

5. A device for spraying a gas-containing fluid comprising a bottlelike container for receiving lthe uid, a .flange on this container, this flange `being arranged around an opening of the container, a top part adapted to close up said opening, locking stirrups having hinge joints with the top part, a nose at each of the locking stirrups "arranged so as to lock the respective locking stirrup under the iange and to press the top part against the said ange, a tube xed at the top part and arranged in alignment with a bore of the top part, the one end of this tube being 'arranged above the bottom of the container, means arranged on the said tube and adapted to hold tablets containing substances adapted to develop gases together with the said fluid, a second tube fixed at the top part and arranged in alignment with a second bore of the top part and in a direction transverse to the rst-named tube and having its flowing out outside the top part, a mouth piece substantially funnel-shaped and xed on the free end of the second-named tube and arranged around the owing out of the tube, a valve adapted to connect bothtubes and arranged in the top part, spring means adapted to close the valve against the action of the gas pressure existing in the container, and means operated by hand and adapted to open f8 :theva'lve against 'the action of lthesaid .fspring means.

6. .A device lfor spraying a sgas-containin'gfuid comprising a `bottle-like container for receiving a fluid adapted to develop gases together-with .gas-developing substances, a flange Von thisfcontainer, said flange being arranged around an 'opening of ,the container, a top :part :adapted to close the said opening and Aconsisting of a top and a'bottom member, means for connectingthe top and the ybottom member, Ilocking stirrups adapted to press the top part against the Jharige, the side surface of the top .member lof the top part having recesses in a number corresponding to thosey of the locking stirrupafthe bottom lmeinber of the top part at itsvsuria'ce adjacent to the said top member having recesses corresponding to those of the top `memb'eran'dsubstantially shaped with rectangular section 'a fillet -be'tween each recess on the .top surface of the bottom member of the top part-andthe side-surfacesaid bottom member being rounded off at Aits surface and adapted to serve .as a support for the respective locking stirrup each of the lockinglstirrups being hooked at its one lend and adapted to enter the respective recesses'of the 'top memberand the bottom member of the top part and to rest with the inner surface Iof Ithe hook upon the respective vfillet of the /bottom member of the top part, the vlheight of each hook being approximately that of two corresponding recesses, thus each locking stirrup having hinge joints with the top part and adapted to lbe held by the top part against loosening, a Anose at each of said locking stirrups,each nose being arranged so as to lock the respective lockingstirrup under the flange and to press the top part against 'the said ange, elastic sealing means inserted lbetween the 'top -part and the flange, a tube fixed at the top part and arranged in alignment with a bore of vthe top part, `the 'one Aend o'f this -tube being arranged above the bottom of the lcontainer, a second tube 'fixed at the 'top part-and arranged in alignmentwitha second bore of the top part and in a direction transverseito ythe firstnamed tube and having its 'flowing out .'outside the top part, a valve adapted to Aconnectboth tubes and arranged in the 'top part, spring means adapted to close the valve counter the faction/of gas pressure existing in the Vcontaineniandlmeans to be operated by hand and adapted to openfthe valve counter the actionof the said springmeans.

'7. A device according to claim 4, wherein the means adapted to hold tablets and Vconnected to one of the tubes are arranged at the end ofthe said tube above'the bottom ofthe 'container and consist of two substantially cylindrical hollow bodies arranged one Within the other and with their common axis vertically so as to form asplitlike ring space adapted to vprevent undiss'o'lve'd parts of the tablets to enter the vring space, said cylindrical hollow body having front walls fat their upper ends substantially spaced .as the cylindrical hollow bodies, and of means for holding the cylindrical hollow bodies in spaced relation, the space between the 'front walls and the said ring space between'both cylindrical 'hollow bodies being in communication with each other and with the said tube, both front walls being provided with communicating openings so as to allow the space of the inner Jcylindrical Yhollow body to communicate with the space of 'the container above the front walls, and elastic lbarlike means arranged vlongitudinally on 'the inner ysurface of the inner cylindrical 'hollow body iin order to form cutters adapted to hold tablets inserted into the inner cylindricalhollow body.

8. A device according to claim`5, in which the bore of the top part, which is in alignment with the rst tube, has in a distance from the bottom surface of the top part a larger diameter than the section of the bore which directly follows the bottom surface of the top part, the shoulder formed by the two bore sections of different diameters is adapted to serve as a valve seat, a valve cone is provided and adapted, when seating on the valve seat, to close the bore, a valve pin is connected to the valve cone and centrally disposed within the bore, a recess conn centrically disposed to the bore is provided in each of the adjacent surfaces of the top member and bottom member of the tcp part, a sealing element made of elastic material is arranged in the said recess of the top surface of the bottom member of the top part, the said sealing element consisting of a disk and a cone integral with the disk and arranged so as to be directed into the section of the bore housed in the bottom member of the top part, a ring is arranged within the recess of the bottom surface of the top member of the top part, said ring being provided with a border at its circumference adapted to press the disk of the sealing element, the sealing element and the ring having each a cen trally arranged hole to receive the valve pin, the cone of the sealing element, when under pressure of the fluid, being adapted to enclose the valve pin tightly, the second bore of the top part being arranged to flow out into the first bore between the sealing element and the valve face, the bore in the top member of the top part opposite the surface adjacent to the bottom member of the top part, a bottom member integral with the top member of the top part, this bottom member being provided with a hole adapted to guide the valve pin, a locking disk secured to the valve pin between the bottom member and the ring, a coil spring is arranged around the valve pin between the bottom member and the locking disk, the said coil spring being adapted to press the Valve cone against the valve seat counter the pressure developed in the bottle, an opening provided at the bottom surface of the top member of the top part and extending from the bore to the side surface of the said top member, a bent lever one arm of Which has a curved section, this arm being disposed within the said opening and adapted to roll off with the curved section on the top surface of the bottom member of the top part, the said arm having means at its end adapted to encircle the valve pin below the locking disk.

9. A device for spraying a gas-containing fluid, comprising a bottle-like container made of plastic materials, a flange integral with the container and arranged around an opening of the container, a top part made of plastic materials adapted to close the said opening and consisting ifi of a bottom member and a top member, means for'connecing the top member and the bottom member, locking stiruups made of plastic materials having hinge joints with the top part and being adapted to press the top part against the said flange, the side surface of the top member of the top part being provided with recesses in a number corresponding to those of the locking stirrups, the bottom member of the top part with its top surface adjacent to the said part being provided with recesses in a number corresponding to those of the top member and having substantially rectangular sections, a iillet between each recess of the top surface of the bottom member of the top part and the side surface of the bottom member being rouned off at its top surface and adapted to serve as a support for the respective locking stirrup, each locking stirrup being hook-shaped and adapted to enter the respective recesses of the top member and the bottom member of the top part and to rest with the inner surface of the hook upon the respective fillet of the bottom member of the top part, the height of each being approximately that of the corresponding recesses thus each locking stirrup having hinge joints with the top part and adapted to be held by the top part against loosening, a nose integral with the said locking stirrup, each nose being arranged so as to lock the respective locking stirrup under the ange and to press the top part against the said flange, elastic sealing means inserted between the top part and the flange, a tube made of plastic materials and fixed at the top part and arranged in alignment with a bore of the top part, the one end of this tube being arranged above the bottom of the container, means made of plastic materials and arranged on the said tube and adapted to hold tablets containing substances adapted to develop gases together with the said fluid, a second tube made of plastic materials and xed at the top part and arranged in alignment with a second bore of the top part and arranged in a direction transverse to the first-named tube and having its flowing out outside the top part, a mouth piece made of plastic materials substantially funnel-shaped and fixed at the free end of the second-named tube and arranged around the flowing out of the tube, a valve adapted to connect the two tubes and arranged in the top part, spring means adapted to close the valve counter the action of the gas pressure existing in the container, and means operated by hand and adapted to open the valve counter the action of the said spring means.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,985,455 Mosby Dec. 25, 1934 2,372,392 Pletman Mar. 27, 1945 2,375,215 Davis May 8, 1945 2,621,746 Beuregard Dec. 16, 1952 

